The exalith carbon wheel tyre system reinvented to be lighter more dynamic and with improved aerodynamics weight 1650 grams pair without tyres the best balance of low frontal drag and crosswind stability 45mm deep naca profile brings low drag in any conditions 25mm external rim width perfectly integrates the 25mm tyre giving you low drag and easy crosswind steering patented elliptical spokes enhance aerodynamics perfect efficiency and low weight 17mm internal rim width offers low rolling re